Adapter for valves



Sept. 27, 1932. A. F. H. KOHLER ET Al.

ADAPTER FR VALVES Y Filed Aug. 2o. 19251 Patented Sept. 27, 1932 AUGUSTF. KHLER ANI) ARTHUR (J.- KAUTZ, ,OF LOCKPORT, NEW' 'YORK A.SSGNOR TSAID KOI-11131311?,

ADAPTER FOR VALVES Application led August 20, 191317.

This invention relates to a valve adapter or fitting designed primarilyfor use with the valves of high pressure gas cylinders of the type usedin hospitals, dental offices, etc.

rlhe valve stems of the so-called packless valves now generally employedon the port* able gas cylinders intended for surgical use are smallerthan the valve stems of the packed type of valve formerly generallyemployed on such cylinders. he dimensions of the packless valves arelimited by reason of the size of the appliances used in connectiontherewith, and so it became necessary to emplo-y a smaller diametervalve stem in the packless valves in order to provide a shoulder on thevalve stem of suthcient area to form a seal for the packless valve. Thereduction in diameter of the valve stem of the packless valve results inthe disadvantage that valve wrenches and hand-wheels employed on thepacked type of valve do not fit the new packless valves.

It is an object of the present invention to provide an adapter which maybe employed 25 in connection with a valve of the packless type to adaptthe valve stem thereof to fit the valve wrench or hand-wheel heretoforeemployed for the packed type of valve.

Another object is the provision of aI valve adapter which is separablefrom the valve stem and is yieldably held in operative position.

Other objects will be apparent from a con- 35 side-ration of thefollowing description taken in connection with the annexed drawing,wherein Figure. 1 shows a longitudinal section of a packless valveshowing the adapter applied 3' thereto. Figure 2 is a similar view, onan enlarged scale, of the upper portion of the valve and adapter. Figure3 is a. perspective view of the adapter. Figure 4 is a perspective viewof the resilient ring.

Similar characters of reference indicate of engagement with its seat 15.

Serial No. 558,249.

corresponding parts throughout the several views.

The invention is shown in connection with a packless valve of the typeparticularly adapted for use with gas cylinders, the same including avalve body which is threaded at its lower end, as indicated at 11 topermit its attachment to a compressed gas cylinder. The valve passage 12isy closed by a retractible plug 13 which is threaded into acorresponding recess 14, so that turning of the 'A plug in its recessmoves the plug into or out A counter recess,16 is formed in the outerend of the valve body 10, within which is threaded the packing gland 17having a socket 18 formed in its outerend. A valve. Vstem 19 `extendsthrough the packing gland and terminates at its inner end in an enlargedportion or head 2() having la diametrically disposedfslot 21 thereinwithin which is keyed a suitable Ytang 22- that forms an operativeconnection between the valve stem 19 and the. valve plug 13. From theforegoing, it will be apparent that rotation of the valve stem istransmitted to the valve plug' through the tang 22, causing the plug tomove into or out of engagement with its seat to open or close the valve.The valve stem 19 does not move longitudinally, but the plug 13 isy freeto move lengthwise relative thereto to its open and closed positions. Atits upper end said stem has a lug 23 rising therefrom. v

The adapter which is ,arranged to be detachably connected to thevalve-stem lug c 23, consists of a body portion 24 shaped to lit intothe socket 18 of the packing gland 17 and has a circumferential groove25 therein adjacent its lower end and a recess 26 formed in its bottom'toreceive the valvestem lug 23. Within the socket 18 near its upper endis formed an internal circumferential groove 27 adapted to `receive asplit annulark expansion spring 28 normally seated in the adapter-groove275. In operative sain Kaufrzt y position, the spring is expanded Withinthe conjugate grooves 25 and 27 to hold the adapter in place. A lug 29of suitable shape to t a standard Wrench or hand Wheel 30 is formed onthe outer end of the adapter,

whereby it may be conveniently operated.

To assemble the adapter and valve, the

annular spring 28 is applied to the adaptergroove 25, after Which theadapter is inserted into the socket 18 of the packing gland 17 With itsrecess 26 registering with the companion lug 23 rising from thevalvestem 19. l/Vhen the spring is in juxtaposition to the groove 27 inthe packing nut land inexpensive in construction, it permitsthe valvesof various types used on portable gas cylinders to be readily adaptedfor opy eration by the standard hand Wheels einployed'for controllingthem, thereby saving the time of hospital attendants, doctors, etc., inthe use of the gas cylinders.

Vile claim as our invention l. In combination with a valve including abody having a socket and a valve-stein extending into the same andterminating at its end in an operating lug, an adapter for the stemhaving a body portion shaped to it the socket and having a recess in itsbottorn for engagement With the valve-stem lug, a lug at the oppositeend of said adapter, and resilient means for detachably connecting theadapter to the socket of the valvebody.

2. In combination with a valve-body having a socket at its upper endcontaining an internal annular groove and a valve-stem extending intothe socket, of an adapter for the valve-stem having a body portionshaped to tit the socket and having a corresponding annular groovetherein and a recess at its lower end for engagement With the valvestemand an expansible band seated in the jects, said socket having aninternal annular groove therein, an adapter for the valve stemdetachably tted in said socket and having a recess in its bottom forinterlocking engagement with. the valve-stem and an annular groovead3acent its lower end, and a split annular expansible Wire seated insaid adapted groove for detachable interlocking engagement with thecompanion groove in the packing gland.

AUGUST F. H. KOHLER.

ARTHUR C. KAUTZ.

groove of the adapter-body for detachable interlocking engagement Withthecompanion groove o-l the valve-body socket, said adapter-body havinga lug rising therefrom for actuating the valve-stem.

8. An adapter for the operating stems of valves, comprising a bodyportion shaped to it a valve-body socket and having a recess therein toreceive the operating end of the valve-stem, a lug formed at theopposite end oi' said body portion, and an anchoring element applied tosaid body portion for detachably connecting itto said valve-body socket.n

4. A valve structure of the character described, comprising a body, avalve-stem and a packing gland in its upper end, said gland containing asocket into which said stem pro-

